Jacob gobbing



(No Model.)

J. GOERING.

HOTWATER BOILER. 'No. 332,147. Patented Dec. 8, 1885.

WITNESSES I INVBNTOR WW 'r/Zca; 5oz r iny air ATTORNEYS UNITED STATES PATENT OFFICE.

JACOB GOERING, OF NEW YORK, N. Y.

HOT-WATER BOILER.

SPECIFICATION forming part of Letters Patent No. 332,147, dated December 8, 1885.

Application filed February 12, 1885. Serial No. 155,7l7. (No model.)

To all whom it may concern.-

Be it known that I, JACOB GOERING, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Hot-Water Boilers, of which the following is a specification.

My invention relates to improvements in hot-water boilers; and it consists in the cornbination,with a hot-water boiler and the hotwater pipe, of a branched cold-water supplypipe, one branch leading into the boiler and the other branch connecting with the hotwater pipe, a check-valve which is situated in the branch leading to the boiler and opens inwardly, and a relief-valve situated in the branch leading to the hot-water pipe and opening outwardly.

In the accompanying drawings, Figure 1 is a vertical longitudinal section of the improved hot-water boiler. Fig. 2 is a front view of a modification. Fig. 3 is a sectional View of a modification of the cold-water-supply pipe.

Similar letters indicate corresponding parts.

In the drawings, referring especially to Fig. 1, the letter A designates a hot-water boiler of ordinary construction, which is connected at its botttorn head. a, with a water-back, B, by the pipes a and I), and some distance from its bottom it is connected with the waterback by a bent pipe, 0. (l is the cold-watersupply pipe or water-main,whicl1 branches at d, one branch, 6, leading through the top head, f, of the boiler to near the bottom of the same, and the other branch, g, connecting with the hot-water pipe h, which leads from the top head,f, of the boiler. In the branch 6 is placed a check valve, D, which opens inwardly, and the object of which is to prevent the hot water in the boiler from backing out through the siphon-shaped branch e when the pressure in the main is diminished from sonic cause. In the branch 9 is placed a check or relief valve, E, which opens outwardly, and allows the escape of the steam and water when the pressure of the boiler exceeds the proper 1imit-that is to say, when it exceeds the pressure of the water in the main. It is' evident tnat the relief-valve E is kept constantly closed by the pressure of the water in the cold water supply pipe 0 until, as before stated, the pressure in the boiler exceeds said pressure.

Instead of having the branch at d, a box may be used in which the two valves are placed, and the pipes e and 9 connected in their proper positions with said box, and also the supply-pipe may branch at any point in its length or directly at the water-main, as seen in Fig. 3.

In Fig. 2 the valves D E are shown in their respective positions when the cold water is fed in through the bottom head of the boiler. By the branching of the cold-watensnpply pipe and the introduction of the check and relief valves in said branches, as described, there is no possibility of an excess of pressure arising in the boiler, which frequently causes the water-back to be blown out with the usual damaging effect; nor can the hot water in the boiler be siphoned out through the pipe 6 on an existing low pressure in the water main or supply.

WVhat I claim as new, and desire to secure by Letters Patent, is

The combination,with an upright hot-water boiler having a hot-water pipe rising from its upper head, of a single cold-water pipe hav= ing two branches at its upper end, one of which communicates with the interior of the boiler. adjacentto the lower head thereof, and the other of which connects with the hot-water pipe above the boiler, an upwardly-opening check-valve in the branch communicating with the boiler, and a downwardly-opening reliefvalve in the other branch, substantially as described.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

J AOOB GOERING. [L. 8.] W'itnesses:

W. HAUFF, A. FABER nu FAUR, J r. 

